Have a 2001 Saturn SL1 , 1.9 sohc. The problem is when it gets up to temp. It will not start, when it cools it starts fine. Now for the list from the beginning . Got the car it had a very high idle found leaking intake gasket so replaced it. Then got a code for bad egr replaced that next bad O2 sensor replaced that .still had a starting problem got code for coolant temp sensor replaced that. replace the ignition mod and both coils and crank sensor. now it won't start no fuel pressure . give it a shot of starting fluid fires right up but then dies . pump relay has 5.1 volts and the fuse has 5.1 volts . Any ideas out there ?

Losing my hair
Thanks

 

how are you quantifying no fuel pressure? Schraeder on fuel rail?

Crank pos sensor fine since fires on starting.
DIS, plugs, wires, coils good since firing.
Bad ECTS would cause hard starting when warm, but would not affect fuel pressure.

Fuel filter would not clog intermittently but could probably use a change

Assuming nothing wrong w ign cylinder, I would suspect fuel pump.

Test:

When car is hot and will not start, depress the schrader valve on the fuel rail with a pen ---put a rag over it, since if fuel does come out, you don't want it everywhere all over a hot engine.

If fuel comes out---we have to dig further
If no fuel comes out -- I suspect fuel pump.

Folks?

 

Thank you for the reply . No pressure at valve so most likey the pump . OK will replace and let you know.

 

replace the fuel filter first.

stranger things have happened.......

 

When the heat backs off will crawl under the beast and change the filter and the pump. Have both on hand .

 

Well it's up and running , New fuel pump and fuel filter started right up runs fine and restarts when hot. For now ! Thanks DERF for all your help. It makes it easier when one has help.

 

Another happy customer served! That's why we're here

 

Again thank you, Now on to some mods for fuel economy .

 

New problem , Now the Security light is on and won't start ! and the service light is on also . Worked great last night. WTF !

 

New thread started (thank you)

https://www.saturnforum.com/forum/sa...y-light-10083/

Closing this one.